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1 ;;; cus-face.el -- XEmacs specific custom support.
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2 ;;
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3 ;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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4 ;;
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5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
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6 ;; Keywords: help, faces
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149
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7 ;; Version: 1.97
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28
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8 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
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9
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10 ;;; Commentary:
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11 ;;
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12 ;; See `custom.el'.
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13
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14 ;;; Code:
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15
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16 (require 'custom)
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17
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149
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18 (eval-when-compile (require 'cl))
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30
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19
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28
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20 ;;; Compatibility.
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21
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118
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22 (if (string-match "XEmacs" emacs-version)
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23 (defun custom-face-background (face &optional frame)
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24 ;; Specifiers suck!
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25 "Return the background color name of face FACE, or nil if unspecified."
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26 (color-instance-name (specifier-instance (face-background face) frame)))
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27 (defalias 'custom-face-background 'face-background))
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28
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29 (if (string-match "XEmacs" emacs-version)
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30 (defun custom-face-foreground (face &optional frame)
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31 ;; Specifiers suck!
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32 "Return the background color name of face FACE, or nil if unspecified."
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33 (color-instance-name (specifier-instance (face-foreground face) frame)))
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34 (defalias 'custom-face-foreground 'face-foreground))
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35
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120
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36 (defalias 'custom-face-font-name (if (string-match "XEmacs" emacs-version)
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37 'face-font-name
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38 'face-font))
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39
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30
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40 (eval-and-compile
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149
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41 (cond ((fboundp 'frame-property)
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42 ;; XEmacs.
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43 (defalias 'custom-frame-parameter 'frame-property))
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44 ((fboundp 'frame-parameter)
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45 ;; Emacs 19.35.
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46 (defalias 'custom-frame-parameter 'frame-parameter))
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47 (t
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48 ;; Old emacsen.
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49 (defun custom-frame-parameter (frame property &optional default)
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50 "Return FRAME's value for property PROPERTY."
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51 (or (cdr (assq property (frame-parameters frame)))
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52 default))))
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30
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53
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54 (unless (fboundp 'face-doc-string)
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55 ;; XEmacs function missing in Emacs.
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56 (defun face-doc-string (face)
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57 "Get the documentation string for FACE."
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124
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58 (get face 'face-documentation)))
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59
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60 (unless (fboundp 'set-face-doc-string)
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61 ;; XEmacs function missing in Emacs.
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62 (defun set-face-doc-string (face string)
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63 "Set the documentation string for FACE to STRING."
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124
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64 (put face 'face-documentation string))))
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65
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66 (unless (fboundp 'x-color-values)
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67 ;; Emacs function missing in XEmacs 19.14.
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68 (defun x-color-values (color &optional frame)
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69 "Return a description of the color named COLOR on frame FRAME.
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70 The value is a list of integer RGB values--(RED GREEN BLUE).
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71 These values appear to range from 0 to 65280 or 65535, depending
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72 on the system; white is (65280 65280 65280) or (65535 65535 65535).
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73 If FRAME is omitted or nil, use the selected frame."
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74 (color-instance-rgb-components (make-color-instance color))))
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75
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76 ;; XEmacs and Emacs have different definitions of `facep'.
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77 ;; The Emacs definition is the useful one, so emulate that.
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78 (cond ((not (fboundp 'facep))
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79 (defun custom-facep (face)
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80 "No faces"
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81 nil))
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82 ((string-match "XEmacs" emacs-version)
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83 (defalias 'custom-facep 'find-face))
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84 (t
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85 (defalias 'custom-facep 'facep)))
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86
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87 (unless (fboundp 'make-empty-face)
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88 ;; This should be moved to `faces.el'.
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89 (if (string-match "XEmacs" emacs-version)
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90 ;; Give up for old XEmacs pre 19.15/20.1.
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91 (defalias 'make-empty-face 'make-face)
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92 ;; Define for Emacs pre 19.35.
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93 (defun make-empty-face (name)
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94 "Define a new FACE on all frames, ignoring X resources."
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95 (interactive "SMake face: ")
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96 (or (internal-find-face name)
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97 (let ((face (make-vector 8 nil)))
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98 (aset face 0 'face)
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99 (aset face 1 name)
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100 (let* ((frames (frame-list))
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101 (inhibit-quit t)
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102 (id (internal-next-face-id)))
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103 (make-face-internal id)
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104 (aset face 2 id)
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105 (while frames
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106 (set-frame-face-alist (car frames)
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107 (cons (cons name (copy-sequence face))
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108 (frame-face-alist (car frames))))
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109 (setq frames (cdr frames)))
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110 (setq global-face-data (cons (cons name face) global-face-data)))
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111 ;; add to menu
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112 (if (fboundp 'facemenu-add-new-face)
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113 (facemenu-add-new-face name))
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114 face))
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115 name)))
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116
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117 (defcustom initialize-face-resources t
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118 "If non nil, allow X resources to initialize face properties.
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119 This only affects faces declared with `defface', and only NT or X11 frames."
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120 :group 'customize
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121 :type 'boolean)
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122
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123 (cond ((fboundp 'initialize-face-resources)
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124 ;; Already bound, do nothing.
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125 )
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126 ((fboundp 'make-face-x-resource-internal)
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127 ;; Emacs or new XEmacs.
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128 (defun initialize-face-resources (face &optional frame)
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129 "Initialize face according to the X11 resources.
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130 This might overwrite existing face properties.
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131 Does nothing when the variable initialize-face-resources is nil."
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132 (when initialize-face-resources
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133 (make-face-x-resource-internal face frame t))))
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134 (t
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135 ;; Too hard to do right on XEmacs.
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136 (defalias 'initialize-face-resources 'ignore)))
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137
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36
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138 ;;(if (string-match "XEmacs" emacs-version)
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139 ;; ;; Xemacs.
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140 ;; (defun custom-invert-face (face &optional frame)
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141 ;; "Swap the foreground and background colors of face FACE.
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142 ;;If the colors are not specified in the face, use the default colors."
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143 ;; (interactive (list (read-face-name "Reverse face: ")))
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144 ;; (let ((fg (color-name (face-foreground face frame) frame))
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145 ;; (bg (color-name (face-background face frame) frame)))
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146 ;; (set-face-foreground face bg frame)
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147 ;; (set-face-background face fg frame)))
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148 ;; ;; Emacs.
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149 ;; (defun custom-invert-face (face &optional frame)
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150 ;; "Swap the foreground and background colors of face FACE.
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151 ;;If the colors are not specified in the face, use the default colors."
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152 ;; (interactive (list (read-face-name "Reverse face: ")))
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153 ;; (let ((fg (or (face-foreground face frame)
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154 ;; (face-foreground 'default frame)
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149
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155 ;; (custom-frame-parameter (or frame (selected-frame))
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36
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156 ;; 'foreground-color)
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157 ;; "black"))
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158 ;; (bg (or (face-background face frame)
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159 ;; (face-background 'default frame)
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149
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160 ;; (custom-frame-parameter (or frame (selected-frame))
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36
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161 ;; 'background-color)
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162 ;; "white")))
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163 ;; (set-face-foreground face bg frame)
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164 ;; (set-face-background face fg frame))))
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165
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166 (defcustom custom-background-mode nil
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167 "The brightness of the background.
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168 Set this to the symbol dark if your background color is dark, light if
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169 your background is light, or nil (default) if you want Emacs to
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170 examine the brightness for you."
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171 :group 'customize
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149
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172 :type '(choice (const dark)
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173 (const light)
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174 (const :tag "default" nil)))
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175
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176 (defun custom-background-mode (frame)
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177 "Kludge to detect background mode for FRAME."
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178 (let* ((bg-resource
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179 (condition-case ()
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180 (x-get-resource ".backgroundMode" "BackgroundMode" 'string)
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181 (error nil)))
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182 color
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183 (mode (cond (bg-resource
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184 (intern (downcase bg-resource)))
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185 ((and (setq color (condition-case ()
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149
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186 (or (custom-frame-parameter
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187 frame
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188 'background-color)
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118
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189 (custom-face-background
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190 'default))
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191 (error nil)))
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192 (or (string-match "XEmacs" emacs-version)
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193 window-system)
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194 (< (apply '+ (x-color-values color))
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195 (/ (apply '+ (x-color-values "white"))
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196 3)))
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197 'dark)
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198 (t 'light))))
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199 (modify-frame-parameters frame (list (cons 'background-mode mode)))
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200 mode))
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201
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30
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202 (eval-and-compile
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203 (if (string-match "XEmacs" emacs-version)
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204 ;; XEmacs.
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205 (defun custom-extract-frame-properties (frame)
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206 "Return a plist with the frame properties of FRAME used by custom."
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207 (list 'type (device-type (frame-device frame))
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208 'class (device-class (frame-device frame))
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209 'background (or custom-background-mode
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149
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210 (custom-frame-parameter frame
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211 'background-mode)
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212 (custom-background-mode frame))))
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213 ;; Emacs.
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214 (defun custom-extract-frame-properties (frame)
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215 "Return a plist with the frame properties of FRAME used by custom."
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216 (list 'type window-system
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149
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217 'class (custom-frame-parameter frame 'display-type)
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218 'background (or custom-background-mode
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149
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219 (custom-frame-parameter frame 'background-mode)
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220 (custom-background-mode frame))))))
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221
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222 ;;; Declaring a face.
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223
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224 ;;;###autoload
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225 (defun custom-declare-face (face spec doc &rest args)
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226 "Like `defface', but FACE is evaluated as a normal argument."
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149
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227 (when (or (fboundp 'load-gc) ;XEmacs.
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228 ;; Emacs.
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229 (and (boundp purify-flag) purify-flag))
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30
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230 ;; This should be allowed, somehow.
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231 (error "Attempt to declare a face during dump"))
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149
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232 (unless (get face 'face-defface-spec)
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233 (put face 'face-defface-spec spec)
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30
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234 (when (fboundp 'facep)
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32
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235 (unless (custom-facep face)
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30
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236 ;; If the user has already created the face, respect that.
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237 (let ((value (or (get face 'saved-face) spec))
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238 (frames (custom-relevant-frames))
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239 frame)
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240 ;; Create global face.
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241 (make-empty-face face)
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242 (custom-face-display-set face value)
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243 ;; Create frame local faces
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244 (while frames
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245 (setq frame (car frames)
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246 frames (cdr frames))
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247 (custom-face-display-set face value frame))
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248 (initialize-face-resources face))))
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249 (when (and doc (null (face-doc-string face)))
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250 (set-face-doc-string face doc))
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251 (custom-handle-all-keywords face args 'custom-face)
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252 (run-hooks 'custom-define-hook))
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253 face)
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254
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255 ;;; Font Attributes.
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256
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257 (defconst custom-face-attributes
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149
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258 '((:bold (toggle :format "%[Bold%]: %v\n"
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259 :help-echo "Control whether a bold font should be used.")
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120
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260 custom-set-face-bold
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261 custom-face-bold)
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149
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262 (:italic (toggle :format "%[Italic%]: %v\n"
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263 :help-echo "\
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264 Control whether an italic font should be used.")
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120
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265 custom-set-face-italic
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266 custom-face-italic)
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149
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267 (:underline (toggle :format "%[Underline%]: %v\n"
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30
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268 :help-echo "\
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269 Control whether the text should be underlined.")
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118
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270 set-face-underline-p
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271 face-underline-p)
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272 (:foreground (color :tag "Foreground"
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32
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273 :value "black"
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274 :help-echo "Set foreground color.")
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118
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275 set-face-foreground
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276 custom-face-foreground)
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30
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277 (:background (color :tag "Background"
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32
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278 :value "white"
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279 :help-echo "Set background color.")
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118
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280 set-face-background
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281 custom-face-background)
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36
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282 ;; (:invert (const :format "Invert Face\n"
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283 ;; :sibling-args (:help-echo "
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284 ;;Reverse the foreground and background color.
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285 ;;If you haven't specified them for the face, the default colors will be used.")
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286 ;; t)
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287 ;; (lambda (face value &optional frame)
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288 ;; ;; We don't use VALUE.
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289 ;; (custom-invert-face face frame)))
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290 (:stipple (editable-field :format "Stipple: %v"
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291 :help-echo "Name of background bitmap file.")
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120
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292 set-face-stipple custom-face-stipple))
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293 "Alist of face attributes.
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294
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118
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295 The elements are of the form (KEY TYPE SET GET) where KEY is a symbol
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296 identifying the attribute, TYPE is a widget type for editing the
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118
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297 attibute, SET is a function for setting the attribute value, and GET is a function for getiing the attribute value.
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30
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298
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299 The SET function should take three arguments, the face to modify, the
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300 value of the attribute, and optionally the frame where the face should
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118
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301 be changed.
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302
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303 The GET function should take two arguments, the face to examine, and
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304 optonally the frame where the face should be examined.")
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30
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305
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306 (defun custom-face-attributes-set (face frame &rest atts)
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307 "For FACE on FRAME set the attributes [KEYWORD VALUE]....
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308 Each keyword should be listed in `custom-face-attributes'.
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309
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310 If FRAME is nil, set the default face."
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311 (while atts
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312 (let* ((name (nth 0 atts))
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313 (value (nth 1 atts))
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314 (fun (nth 2 (assq name custom-face-attributes))))
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315 (setq atts (cdr (cdr atts)))
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316 (condition-case nil
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317 (funcall fun face value frame)
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318 (error nil)))))
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319
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118
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320 (defun custom-face-attributes-get (face frame)
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321 "For FACE on FRAME get the attributes [KEYWORD VALUE]....
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322 Each keyword should be listed in `custom-face-attributes'.
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323
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324 If FRAME is nil, use the default face."
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120
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325 (condition-case nil
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326 ;; Attempt to get `font.el' from w3.
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327 (require 'font)
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328 (error nil))
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118
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329 (let ((atts custom-face-attributes)
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330 att result get)
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331 (while atts
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332 (setq att (car atts)
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333 atts (cdr atts)
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334 get (nth 3 att))
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335 (when get
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336 (let ((answer (funcall get face frame)))
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337 (unless (equal answer (funcall get 'default frame))
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338 (when (widget-apply (nth 1 att) :match answer)
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339 (setq result (cons (nth 0 att) (cons answer result))))))))
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340 result))
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341
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30
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342 (defun custom-set-face-bold (face value &optional frame)
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343 "Set the bold property of FACE to VALUE."
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344 (if value
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345 (make-face-bold face frame)
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346 (make-face-unbold face frame)))
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347
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120
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348 (defun custom-face-bold (face &rest args)
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349 "Return non-nil if the font of FACE is bold."
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350 (let* ((font (apply 'custom-face-font-name face args))
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351 (fontobj (font-create-object font)))
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352 (font-bold-p fontobj)))
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353
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30
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354 (defun custom-set-face-italic (face value &optional frame)
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355 "Set the italic property of FACE to VALUE."
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356 (if value
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357 (make-face-italic face frame)
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358 (make-face-unitalic face frame)))
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359
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120
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360 (defun custom-face-italic (face &rest args)
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361 "Return non-nil if the font of FACE is italic."
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362 (let* ((font (apply 'custom-face-font-name face args))
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363 (fontobj (font-create-object font)))
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364 (font-italic-p fontobj)))
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365
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366 (defun custom-face-stipple (face &rest args)
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367 "Return the name of the stipple file used for FACE."
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368 (if (string-match "XEmacs" emacs-version)
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369 (let ((image (apply 'specifier-instance
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370 (face-background-pixmap face) args)))
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371 (when image
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372 (image-instance-file-name image)))
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373 (apply 'face-stipple face args)))
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374
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30
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375 (when (string-match "XEmacs" emacs-version)
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376 ;; Support for special XEmacs font attributes.
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377 (autoload 'font-create-object "font" nil)
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378
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379 (defun custom-set-face-font-size (face size &rest args)
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380 "Set the font of FACE to SIZE"
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120
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381 (let* ((font (apply 'custom-face-font-name face args))
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30
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382 (fontobj (font-create-object font)))
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383 (set-font-size fontobj size)
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32
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384 (apply 'font-set-face-font face fontobj args)))
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30
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385
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120
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386 (defun custom-face-font-size (face &rest args)
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387 "Return the size of the font of FACE as a string."
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388 (let* ((font (apply 'custom-face-font-name face args))
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389 (fontobj (font-create-object font)))
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124
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390 (format "%s" (font-size fontobj))))
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120
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391
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30
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392 (defun custom-set-face-font-family (face family &rest args)
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120
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393 "Set the font of FACE to FAMILY."
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394 (let* ((font (apply 'custom-face-font-name face args))
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30
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395 (fontobj (font-create-object font)))
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396 (set-font-family fontobj family)
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32
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397 (apply 'font-set-face-font face fontobj args)))
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30
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398
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120
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399 (defun custom-face-font-family (face &rest args)
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400 "Return the name of the font family of FACE."
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401 (let* ((font (apply 'custom-face-font-name face args))
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402 (fontobj (font-create-object font)))
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403 (font-family fontobj)))
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404
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405 (setq custom-face-attributes
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406 (append '((:family (editable-field :format "Font Family: %v"
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407 :help-echo "\
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30
|
408 Name of font family to use (e.g. times).")
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120
|
409 custom-set-face-font-family
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410 custom-face-font-family)
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411 (:size (editable-field :format "Size: %v"
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412 :help-echo "\
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30
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413 Text size (e.g. 9pt or 2mm).")
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120
|
414 custom-set-face-font-size
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415 custom-face-font-size)
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149
|
416 (:strikethru (toggle :format "%[Strikethru%]: %v\n"
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120
|
417 :help-echo "\
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418 Control whether the text should be strikethru.")
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419 set-face-strikethru-p
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420 face-strikethru-p))
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421 custom-face-attributes)))
|
|
30
|
422
|
|
|
423 ;;; Frames.
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424
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149
|
425 (defun face-spec-set (face spec &optional frame)
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|
|
426 "Set FACE to the attributes to the first matching entry in SPEC.
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|
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427 Iff optional FRAME is non-nil, set it for that frame only.
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|
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428 See `defface' for information about SPEC.
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429
|
|
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430 Clear all existing attributes first."
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|
|
431 (when (fboundp 'copy-face)
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|
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432 (copy-face 'custom-face-empty face frame))
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|
|
433 (custom-face-display-set face spec frame))
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|
|
434
|
|
30
|
435 (defun custom-face-display-set (face spec &optional frame)
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|
|
436 "Set FACE to the attributes to the first matching entry in SPEC.
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|
|
437 Iff optional FRAME is non-nil, set it for that frame only.
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|
|
438 See `defface' for information about SPEC."
|
|
|
439 (when (fboundp 'make-face)
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|
|
440 (while spec
|
|
|
441 (let* ((entry (car spec))
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|
|
442 (display (nth 0 entry))
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|
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443 (atts (nth 1 entry)))
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|
|
444 (setq spec (cdr spec))
|
|
149
|
445 (when (face-spec-set-match-display display frame)
|
|
30
|
446 ;; Avoid creating frame local duplicates of the global face.
|
|
|
447 (unless (and frame (eq display (get face 'custom-face-display)))
|
|
|
448 (apply 'custom-face-attributes-set face frame atts))
|
|
|
449 (unless frame
|
|
|
450 (put face 'custom-face-display display))
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|
|
451 (setq spec nil))))))
|
|
|
452
|
|
28
|
453 (defvar custom-default-frame-properties nil
|
|
|
454 "The frame properties used for the global faces.
|
|
|
455 Frames who doesn't match these propertiess should have frame local faces.
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|
|
456 The value should be nil, if uninitialized, or a plist otherwise.
|
|
|
457 See `defface' for a list of valid keys and values for the plist.")
|
|
|
458
|
|
|
459 (defun custom-get-frame-properties (&optional frame)
|
|
|
460 "Return a plist with the frame properties of FRAME used by custom.
|
|
|
461 If FRAME is nil, return the default frame properties."
|
|
|
462 (cond (frame
|
|
|
463 ;; Try to get from cache.
|
|
149
|
464 (let ((cache (custom-frame-parameter frame 'custom-properties)))
|
|
28
|
465 (unless cache
|
|
|
466 ;; Oh well, get it then.
|
|
|
467 (setq cache (custom-extract-frame-properties frame))
|
|
|
468 ;; and cache it...
|
|
|
469 (modify-frame-parameters frame
|
|
|
470 (list (cons 'custom-properties cache))))
|
|
|
471 cache))
|
|
|
472 (custom-default-frame-properties)
|
|
|
473 (t
|
|
|
474 (setq custom-default-frame-properties
|
|
|
475 (custom-extract-frame-properties (selected-frame))))))
|
|
|
476
|
|
149
|
477 (defun face-spec-set-match-display (display frame)
|
|
28
|
478 "Non-nil iff DISPLAY matches FRAME.
|
|
|
479 If FRAME is nil, the current FRAME is used."
|
|
|
480 ;; This is a kludge to get started, we really should use specifiers!
|
|
|
481 (if (eq display t)
|
|
|
482 t
|
|
|
483 (let* ((props (custom-get-frame-properties frame))
|
|
|
484 (type (plist-get props 'type))
|
|
|
485 (class (plist-get props 'class))
|
|
|
486 (background (plist-get props 'background))
|
|
|
487 (match t)
|
|
|
488 (entries display)
|
|
|
489 entry req options)
|
|
|
490 (while (and entries match)
|
|
|
491 (setq entry (car entries)
|
|
|
492 entries (cdr entries)
|
|
|
493 req (car entry)
|
|
|
494 options (cdr entry)
|
|
|
495 match (cond ((eq req 'type)
|
|
|
496 (memq type options))
|
|
|
497 ((eq req 'class)
|
|
|
498 (memq class options))
|
|
|
499 ((eq req 'background)
|
|
|
500 (memq background options))
|
|
|
501 (t
|
|
|
502 (error "Unknown req `%S' with options `%S'"
|
|
|
503 req options)))))
|
|
|
504 match)))
|
|
|
505
|
|
|
506 (defun custom-relevant-frames ()
|
|
|
507 "List of frames whose custom properties differ from the default."
|
|
30
|
508 (let ((relevant nil)
|
|
|
509 (default (custom-get-frame-properties))
|
|
|
510 (frames (frame-list))
|
|
|
511 frame)
|
|
|
512 (while frames
|
|
|
513 (setq frame (car frames)
|
|
|
514 frames (cdr frames))
|
|
|
515 (unless (equal default (custom-get-frame-properties frame))
|
|
|
516 (push frame relevant)))
|
|
|
517 relevant))
|
|
28
|
518
|
|
|
519 (defun custom-initialize-faces (&optional frame)
|
|
|
520 "Initialize all custom faces for FRAME.
|
|
|
521 If FRAME is nil or omitted, initialize them for all frames."
|
|
|
522 (mapcar (lambda (symbol)
|
|
|
523 (let ((spec (or (get symbol 'saved-face)
|
|
149
|
524 (get symbol 'face-defface-spec))))
|
|
28
|
525 (when spec
|
|
|
526 (custom-face-display-set symbol spec frame)
|
|
|
527 (initialize-face-resources symbol frame))))
|
|
|
528 (face-list)))
|
|
|
529
|
|
124
|
530 ;;;###autoload
|
|
28
|
531 (defun custom-initialize-frame (&optional frame)
|
|
|
532 "Initialize local faces for FRAME if necessary.
|
|
118
|
533 If FRAME is missing or nil, the first member of (frame-list) is used."
|
|
28
|
534 (unless frame
|
|
|
535 (setq frame (car (frame-list))))
|
|
|
536 (unless (equal (custom-get-frame-properties)
|
|
|
537 (custom-get-frame-properties frame))
|
|
30
|
538 (custom-initialize-faces frame)))
|
|
28
|
539
|
|
|
540 ;;; Initializing.
|
|
|
541
|
|
|
542 (and (fboundp 'make-face)
|
|
|
543 (make-face 'custom-face-empty))
|
|
|
544
|
|
|
545 ;;;###autoload
|
|
|
546 (defun custom-set-faces (&rest args)
|
|
|
547 "Initialize faces according to user preferences.
|
|
|
548 The arguments should be a list where each entry has the form:
|
|
|
549
|
|
|
550 (FACE SPEC [NOW])
|
|
|
551
|
|
|
552 SPEC will be stored as the saved value for FACE. If NOW is present
|
|
|
553 and non-nil, FACE will also be created according to SPEC.
|
|
|
554
|
|
|
555 See `defface' for the format of SPEC."
|
|
|
556 (while args
|
|
|
557 (let ((entry (car args)))
|
|
|
558 (if (listp entry)
|
|
|
559 (let ((face (nth 0 entry))
|
|
|
560 (spec (nth 1 entry))
|
|
|
561 (now (nth 2 entry)))
|
|
|
562 (put face 'saved-face spec)
|
|
|
563 (when now
|
|
32
|
564 (put face 'force-face t))
|
|
|
565 (when (or now (custom-facep face))
|
|
149
|
566 (face-spec-set face spec))
|
|
28
|
567 (setq args (cdr args)))
|
|
|
568 ;; Old format, a plist of FACE SPEC pairs.
|
|
|
569 (let ((face (nth 0 args))
|
|
|
570 (spec (nth 1 args)))
|
|
|
571 (put face 'saved-face spec))
|
|
|
572 (setq args (cdr (cdr args)))))))
|
|
|
573
|
|
|
574 ;;; The End.
|
|
|
575
|
|
|
576 (provide 'cus-face)
|
|
|
577
|
|
|
578 ;; cus-face.el ends here
|
